US20240158207A1 - Automatic conveyor and automatic cleaning device for the handrail belt thereof - Google Patents

Automatic conveyor and automatic cleaning device for the handrail belt thereof Download PDF

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Publication number
US20240158207A1
US20240158207A1 US18/365,444 US202318365444A US2024158207A1 US 20240158207 A1 US20240158207 A1 US 20240158207A1 US 202318365444 A US202318365444 A US 202318365444A US 2024158207 A1 US2024158207 A1 US 2024158207A1
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US
United States
Prior art keywords
cleaning
cleaning unit
automatic
handrail belt
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
US18/365,444
Other languages
English (en)
Inventor
Jiangxing Huang
Zhengguang Zhou
MingLi Zhou
Minglei Feng
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Otis Elevator Co
Original Assignee
Otis Elevator Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Otis Elevator Co filed Critical Otis Elevator Co
Assigned to OTIS ELEVATOR COMPANY reassignment OTIS ELEVATOR COMPANY ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: OTIS ELECTRIC ELEVATOR CO., LTD.
Assigned to OTIS ELECTRIC ELEVATOR CO., LTD. reassignment OTIS ELECTRIC ELEVATOR CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FENG, Minglei, HUANG, JIANGXING, ZHOU, MINGLI, ZHOU, Zhengguang
Publication of US20240158207A1 publication Critical patent/US20240158207A1/en
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
    • B66B31/02—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for handrails
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/02—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using physical phenomena
    • A61L2/08—Radiation
    • A61L2/10—Ultraviolet radiation
    • B08B1/006—
    • B08B1/02—
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/14—Wipes; Absorbent members, e.g. swabs or sponges
    • B08B1/143—Wipes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/041—Cleaning travelling work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B23/00—Component parts of escalators or moving walkways
    • B66B23/22—Balustrades
    • B66B23/24—Handrails
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
    • B66B31/003—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for cleaning steps or pallets
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/11—Apparatus for generating biocidal substances, e.g. vaporisers, UV lamps
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/14—Means for controlling sterilisation processes, data processing, presentation and storage means, e.g. sensors, controllers, programs
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/10—Apparatus features
    • A61L2202/17—Combination with washing or cleaning means

Definitions

  • the present invention relates to the field of automatic conveying devices. More specifically, the present invention relates to an automatic cleaning device for the handrail belt of an automatic conveying device, such as an escalator or a moving walkway.
  • the handrail belts of automatic conveying devices such as escalators and moving walkways, often need to be cleaned for dirt removal and sterilization, so as to prevent virus infection.
  • the existing escalator cleaning devices generally employ manual cleaning or using external devices.
  • the addition of external devices may not meet the requirements of relevant standards. For example, when the escalator is cleaned using an external device, the escalator may need to stop carrying passengers. In addition, external devices may require manual installation and operation.
  • Some escalator systems may have built-in cleaning devices, but they mainly employ dry cleaning by, for example, brushes.
  • the object of the present application is to solve or at least alleviate the problems existing in the prior art.
  • an automatic cleaning device for a handrail belt of an automatic conveying device comprising: a base; a first cleaning unit and a second cleaning unit mounted on the base, wherein the first cleaning unit and the second cleaning unit are arranged in a front and back way in a moving direction of the handrail belt; a cleaning liquid conveying device, for conveying cleaning liquid to the first cleaning unit or the second cleaning unit; and a controller configured to control the cleaning liquid conveying device to deliver the cleaning liquid to one of the first cleaning unit and the second cleaning unit that first comes into contact with the handrail belt based on the running direction of the handrail belt during a cleaning operation.
  • the first cleaning unit and the second cleaning unit are movably mounted on the base, wherein the first cleaning unit and the second cleaning unit are movable between an operating position and an idle position relative to the base driven by a drive mechanism.
  • the first cleaning unit and the second cleaning unit are in contact with the handrail belt, and when in the idle position, the first cleaning unit and the second cleaning unit are separated from the handrail belt.
  • the cleaning liquid conveying device is connected to a cleaning liquid tank.
  • the cleaning liquid conveying device comprises a main pipeline connected to the cleaning liquid tank, a drive pump on the main pipeline, a first branch and a second branch respectively connected to the first cleaning unit and the second cleaning unit, and a switching valve selectively connecting the first branch with the main pipeline or connecting the second branch with the main pipeline.
  • the controller when performing a cleaning operation, controls the drive pump to start operating, controls the drive mechanism to drive the first cleaning unit and the second cleaning unit to move to the operating position, and controls the switching valve so that the cleaning liquid is supplied to one of the first cleaning unit and the second cleaning unit that first comes into contact with the handrail belt. And, when stopping the cleaning operation, the controller controls the drive mechanism to drive the first cleaning unit and the second cleaning unit to move to the idle position, and controls the drive pump to stop operating.
  • the automatic cleaning device further comprises an ultraviolet sterilization module, which sterilizes the handrail belt when it passes therethrough.
  • the controller is configured to automatically perform the cleaning operation at a specific time interval, wherein each cleaning operation lasts for a predetermined time period.
  • the controller is configured to perform the cleaning operation when the automatic conveying device is at idle speed or in normal operation.
  • the drive mechanism comprises a drive motor and a screw and nut mechanism
  • the first cleaning unit and the second cleaning unit are mounted on a movable bracket that is movable relative to the base, and the drive motor and the screw and nut mechanism drive the movable bracket to move on the base, so as to synchronously drive the first cleaning unit and the second cleaning unit to move.
  • one of the first cleaning unit and the second cleaning unit that receives the cleaning liquid performs wet cleaning, and the other of the first cleaning unit and the second cleaning unit that does not receive the cleaning liquid performs dry cleaning, so as to remove the cleaning liquid remaining on the handrail belt during the wet cleaning process.
  • the first cleaning unit and the second cleaning unit comprise replaceable cloth-based wiping heads, and the cleaning liquid conveying device delivers the cleaning liquid to the wiping head of the first cleaning unit or the second cleaning unit.
  • An automatic conveying device is also provided, which is provided with an automatic cleaning device according to the various embodiments.
  • the automatic conveying device is an escalator or a moving walkway
  • the automatic cleaning device is arranged inside the housing of the automatic conveying device to clean the handrail belt in a reverse running section of the handrail belt.
  • the automatic cleaning device can clean the handrail belt of an automatic conveying device in an automatic, intelligent and convenient manner.
  • FIG. 1 is a structural schematic diagram of an escalator according to an embodiment of the present invention
  • FIG. 2 is a side view of an automatic cleaning device according to an embodiment of the present invention.
  • FIGS. 3 and 4 are respectively a perspective view and a side view of the internal structure of an automatic cleaning device according to an embodiment of the present invention.
  • FIG. 5 is a structural schematic diagram of a cleaning liquid conveying device of an automatic cleaning device according to an embodiment of the present invention.
  • FIG. 1 shows an escalator 9 , which is arranged between a first floor 98 and a second floor 99 higher than the first floor 98 , and includes an inclined section 97 .
  • the escalator can be any known type of escalator that includes a handrail belt.
  • the handrail belt forms a cycle, and includes at any time a forward running section 91 accessible to passengers and a reverse running section 92 hidden in the housing of the escalator.
  • the handrail belt at the forward running section 91 has the same running direction as the steps of the escalator, and passengers may contact these parts of the handrail belt when taking the escalator.
  • the escalator according to the embodiments of the present invention is provided with an automatic cleaning device 94 for cleaning the handrail belt thereof.
  • the automatic cleaning device 94 can avoid, for example, the forward running section 91 of the handrail belt, so as to avoid affecting passengers taking the escalator.
  • the automatic cleaning device 94 can avoid complex structure positions such as the machine rooms on the first floor 98 and the second floor 99 , and is fixed at the inclined section 97 of the escalator to clean the reverse running section 92 of the escalator handrail belt.
  • the automatic cleaning device 94 can also be arranged at any other suitable position of the escalator.
  • the automatic cleaning device 94 can also be used for moving walkways, i.e., horizontally arranged step conveying devices. Escalators and moving walkways are collectively referred to as automatic conveying devices in the present invention.
  • the automatic cleaning device comprises: a base 1 ; a cleaning module 100 mounted on the base, a sterilization module 2 and a cleaning liquid tank 4 .
  • the cleaning liquid tank 4 is arranged further away from the handrail belt than the cleaning module 100 and the sterilization module 2 .
  • the cleaning module 100 and the sterilization module 2 are arranged in a front and back way in the running direction of the handrail belt of the escalator.
  • a pair of guide wheels 13 can be arranged at the front and rear sides of the cleaning module 100 and the sterilization module 2 .
  • the housing of the cleaning module 100 is removed in FIGS. 3 and 4 , so as to show the internal structure of the cleaning module 100 and the sterilization module 2 and the cleaning liquid conveying device are not depicted for clarity.
  • the cleaning module 100 comprises a first cleaning unit 11 and a second cleaning unit 12 .
  • the first cleaning unit 11 and the second cleaning unit 12 are arranged in a front and back way in the moving direction of the handrail belt. Taking the case in FIG. 2 as an example, if the escalator goes up and the reverse running section 92 of the handrail belt goes down, the second cleaning unit 12 is in front and the first cleaning unit 11 is behind. On the contrary, if the escalator goes down and the reverse running section 92 of the handrail belt goes up, then the first cleaning unit 11 is in front and the second cleaning unit 12 is behind.
  • the cleaning liquid conveying device is arranged between the cleaning liquid tank 4 and the first cleaning unit 11 and the second cleaning unit 12 .
  • the cleaning liquid conveying device alternatively delivers the cleaning liquid to either the first cleaning unit 11 or the second cleaning unit 12 .
  • the cleaning liquid conveying device can be directly connected to the cleaning liquid source, while the cleaning liquid tank 4 is not necessarily to be arranged at this point.
  • the cleaning liquid can be water or other suitable types of sterilization or disinfection cleaning liquids.
  • the automatic cleaning device 94 further comprises a controller configured to control the cleaning liquid conveying device to deliver the cleaning liquid to one of the first cleaning unit 11 and the second cleaning unit 12 that first comes into contact with the handrail belt during the cleaning operation based on the running direction of the handrail belt.
  • the so-called “first come into contact with the handrail belt” refers to that a specific position of the handrail belt will pass through the first cleaning unit 11 and the second cleaning unit 12 in turn during the movement of the handrail belt.
  • one of the first cleaning unit and the second cleaning unit that receives the cleaning liquid i.e., the one that first comes into contact
  • the other of the first cleaning unit and the second cleaning unit that does not receive the cleaning liquid i.e., the one that later comes into contact
  • the first cleaning unit 11 and the second cleaning unit 12 are movably mounted on the base 1 .
  • the first cleaning unit 11 and the second cleaning unit 12 include cloth-based replaceable wiping heads 111 , 121 , and the cleaning liquid conveying device delivers the cleaning liquid to the wiping head 111 of the first cleaning unit 11 or the wiping head 121 of the second cleaning unit 12 to wet the cloth therein.
  • the first cleaning unit 11 and the second cleaning unit 12 can move between an operating position and an idle position relative to the base 1 driven by the drive mechanism.
  • the first cleaning unit 11 and the second cleaning unit 12 are in contact with the handrail belt 92 , while in the idle position, the first cleaning unit 11 and the second cleaning unit 12 are separated from the handrail belt 92 . Therefore, the first cleaning unit 11 and the second cleaning unit 12 only come into contact with the handrail belt when the cleaning operation is desired, without any impact on the automatic conveying device during normal operation.
  • the drive mechanism comprises a drive motor and a screw and nut mechanism. More specifically, the drive mechanism comprises a drive motor 51 mounted on the movable bracket 3 .
  • the output shaft of the drive motor 51 includes a gear 511 , which meshes with a gear 52 on the screw 53 of the screw and nut mechanism.
  • the screw 53 is also mounted on the movable bracket 3 .
  • the movable bracket 3 is mounted in a horizontally movable manner on the base 1 , for example, on the top platform 41 of the cleaning liquid tank 4 .
  • the movable bracket 3 is connected to the ferrule on the horizontal guide rail 6 sleeved on the top platform 41 .
  • the nut part 61 of the screw and nut mechanism is fixed, such as fixed to the horizontal guide rail 6 on the top platform 41 .
  • the drive motor 51 rotates, it drives the screw to rotate, thereby driving the movable bracket 3 to bring the first cleaning unit 11 and the second cleaning unit 12 to move horizontally between the operating position and the idle position.
  • the movable bracket includes an inclined plane and a vertical plane, and the drive motor and screw and nut mechanism are accommodated in the cavity formed by the inclined plane and vertical plane of the movable bracket, thus achieving a compact structure.
  • the cleaning liquid conveying device comprises a main pipeline 71 connected to the cleaning liquid tank 4 , a drive pump 72 on the main pipeline 71 , a first branch 74 and a second branch 75 respectively connected to the first cleaning unit 11 and the second cleaning unit 12 , and a switching valve 73 that selectively connects the first branch 74 to the main pipeline 71 or connects the second branch 75 to the main pipeline 71 .
  • the cleaning liquid in the cleaning liquid tank 4 can be selectively delivered to the first cleaning unit 11 or the second cleaning unit 12 .
  • the cleaning liquid conveying device shown in FIG. 5 is only an example.
  • the switching valve 73 can also be replaced by solenoid valves arranged on the first branch 74 and the second branch 75 .
  • the cleaning liquid conveying device can be connected to a cleaning liquid source with a certain pressure, and at this point, the drive pump can be omitted.
  • the controller when performing the cleaning operation, controls the drive mechanism to drive the first cleaning unit 11 and the second cleaning unit 12 to move to the operating position, controls the drive pump 72 to work, and controls the switching valve 73 so that the cleaning liquid is supplied to one of the first cleaning unit 11 and the second cleaning unit 12 that first comes into contact with the handrail belt. And, when stopping the cleaning operation, the controller controls the drive mechanism to drive the first cleaning unit 11 and the second cleaning unit 12 to move to the idle position, and controls the drive pump 72 to stop operating.
  • the sterilization module 2 can be an ultraviolet sterilization module. As shown in FIG. 2 , the ultraviolet sterilization module is arranged before or after the first cleaning unit 11 and the second cleaning unit 12 in the moving direction of the handrail belt. In alternative embodiments, the sterilization module 2 can also be arranged between the first cleaning unit 11 and the second cleaning unit 12 . The ultraviolet sterilization module sterilizes the handrail belt when it passes therethrough.
  • the controller is configured to automatically perform a cleaning operation at a specific time interval, such as once every 24 hours, where each cleaning operation lasts for a predetermined time period, such as 5 minutes.
  • the controller is configured to perform an automatic cleaning operation when the escalator has no passengers and is at idle speed, at which time the handrail belt moves slowly.
  • the controller is configured to perform a cleaning operation when the escalator is in normal operation, at which time the handrail belt moves relatively fast.
  • an automatic conveying device which is provided with an automatic cleaning device according to the various embodiments.
  • the automatic conveying device is an escalator or a moving walkway, and the automatic cleaning device is arranged inside the automatic conveying device to clean the handrail belt in the reverse running section 92 of the handrail belt.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Escalators And Moving Walkways (AREA)
US18/365,444 2022-11-10 2023-08-04 Automatic conveyor and automatic cleaning device for the handrail belt thereof Pending US20240158207A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202211404390.XA CN118047293A (zh) 2022-11-10 2022-11-10 自动传输装置和用于其扶手皮带的自动清洁装置
CN202211404390.X 2022-11-10

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US20240158207A1 true US20240158207A1 (en) 2024-05-16

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US18/365,444 Pending US20240158207A1 (en) 2022-11-10 2023-08-04 Automatic conveyor and automatic cleaning device for the handrail belt thereof

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EP (1) EP4368556A1 (zh)
CN (1) CN118047293A (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101289393B1 (ko) * 2010-01-25 2013-07-29 임미숙 핸드레일 크리닝 장치
KR102240853B1 (ko) * 2020-06-19 2021-04-15 주식회사 클리어윈 자가동력형 핸드레일 살균장치
CN113800373A (zh) * 2021-10-20 2021-12-17 王怡 一种用于自动扶梯的扶手带消毒机

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CN118047293A (zh) 2024-05-17

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AS Assignment

Owner name: OTIS ELEVATOR COMPANY, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:OTIS ELECTRIC ELEVATOR CO., LTD.;REEL/FRAME:064633/0331

Effective date: 20221205

Owner name: OTIS ELECTRIC ELEVATOR CO., LTD., CHINA

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HUANG, JIANGXING;ZHOU, ZHENGGUANG;ZHOU, MINGLI;AND OTHERS;REEL/FRAME:064626/0265

Effective date: 20221123

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